<template>
  <div>
    <!--    面包屑导航区-->
    <Breadcrumb :breadItemName="breadItemName"></Breadcrumb>
    <!--    卡片视图-->
    <el-card>
      <!--      搜索与添加区-->
      <el-row :gutter="18">
        <el-col :xs="14" :sm="6" :md="4" :lg="7" :xl="12">
          <el-input placeholder="请输入内容"
                    v-model="queryInfo.query"
                    clearable
                    @clear="getUserList"
          >
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :xs="2" :md="4" :lg="12" :xl="12">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!--    用户列表区-->
      <el-table
          border
          stripe
          :data="userList"
          style="width: 100%">
        <el-table-column
            type="index"
            label="#"
        >
        </el-table-column>
        <el-table-column
            prop="username"
            label="姓名"
            width="180">
        </el-table-column>
        <el-table-column
            prop="email"
            label="邮箱"
            width="180">
        </el-table-column>
        <el-table-column
            prop="mobile"
            label="电话">
        </el-table-column>
        <el-table-column
            prop="role_name"
            label="角色">
        </el-table-column>
        <el-table-column
            label="状态">
          <!--          作用域插槽是为了获得当前行的数据,进而变成按钮-->
          <template slot-scope="scope">
            <el-switch
                v-model="scope.row.mg_state"
                @change="userStateChanged(scope.row)"
                active-color="#13ce66"
            >
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column
            label="日期">
          <template slot-scope="scope">
            {{scope.row.create_time | toLocaleString }}
          </template>
        </el-table-column>
        <el-table-column
            label="操作"
            width="180px"
        >
          <template slot-scope="scope">
            <el-button type="primary" icon="el-icon-edit" size="small"
                       @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="small"
                       @click="removeUserById(scope.row.id)"></el-button>
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="small"
                         @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!--      分页区-->
      <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
      </el-pagination>
    </el-card>
    <!--    对话框-->
    <el-dialog
        title="添加用户"
        :visible.sync="addDialogVisible"
        @close="addDialogClosed"
        width="40%"
    >
      <el-form ref="addFormRef" :rules="addFormRules" :model="addForm" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
       <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!--    修改用户的对话框-->
    <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="40%"
        @close="editDialogClosed"
    >
      <el-form ref="editFormRef" :rules="editFormRules" :model="editForm" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机号" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
    </el-dialog>
    <!--    分配角色对话框-->
    <el-dialog
        title="分配角色"
        :visible.sync="setRoledialogVisible"
        width="40%"
        @close="setRoleDialogClosed"
    >
      <div>
        <p>当前用户:{{userInfo.username}}</p>
        <p>当前角色:{{userInfo.role_name}}</p>
        <p>分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择">
            <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
    <el-button @click="setRoledialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
    </el-dialog>
  </div>
</template>

<script>
import Breadcrumb from '@/components/Breadcrumb'

export default {
  name: 'Users',
  filters: {
    toLocaleString: function(value) {
      return new Date(value).toLocaleString()
    }
  },
  data() {
    let checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    let checkMobile = (rule, value, cb) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      breadItemName: ['用户管理', '用户列表'],
      queryInfo: {
        query: '',
        //当前页数
        pagenum: 1,
        pagesize: 2
      },
      userList: [],
      total: 0,
      //对话框
      addDialogVisible: false,
      editDialogVisible: false,
      //添加用户的表单数据和验证规则
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      editForm: {},
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '用户名的长度在3~10之间', trigger: 'blur' }
        ], password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '密码的长度在3~10之间', trigger: 'blur' }
        ], email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ], mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ], mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      setRoledialogVisible: false,
      userInfo: {},
      rolesList: [],
      //已选中的角色id值
      selectedRoleId: ''
    }
  },
  created() {
    this.getUserList()
  },
  components: {
    Breadcrumb
  },
  methods: {
    async getUserList() {
      let { data: result } = await this.$http.get('/users',
        { params: this.queryInfo })
      if (result.meta.status !== 200) {
        return this.$message.error('请求数据错误,稍后重试')
      }
      this.userList = result.data.users
      this.total = result.data.total
    },
    //监听pagesize改变的事件
    handleSizeChange(newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    //页码值发生改变
    handleCurrentChange(newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听 switch开关 状态改变
    async userStateChanged(userInfo) {
      const { data: res } = await this.$http.put(
        `users/${userInfo.id}/state/${userInfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功！')
    },
    //监听添加用户对话框的关闭事件,并重置表单
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    //点击按钮确定添加新用户
    addUser() {
      //点击添加前,先要预先校验
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        let { data: result } = await this.$http.post('/users', this.addForm)
        if (result.meta.status !== 201) return this.$message.error('添加用户失败了,请重新添加')
        this.$message.success('添加用户成功')
        this.addDialogVisible = false
        this.getUserList()
      })
    },
    editUserInfo() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        let { data: result } = await this.$http.put('/users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (result.meta.status !== 200) return this.$message.error('修改用户失败了,请重新修改')
        this.editDialogVisible = false
        this.getUserList()
        this.$message.success('修改用户成功')
      })
    },
    async showEditDialog(id) {
      let { data: result } = await this.$http.get('/users/' + id)
      if (result.meta.status !== 200) return this.$message.error('查询用户信息失败')
      this.editForm = result.data
      this.editDialogVisible = true
    },
    //根据id删除对应用户信息
    async removeUserById(id) {
      const confirmRuslt = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      if (confirmRuslt !== 'confirm') return this.$message.info('已取消删除')
      let { data: result } = await this.$http.delete('/users/' + id)
      console.log(result.meta)
      if (result.meta.status !== 200) return this.$message.error('删除失败')
      this.getUserList()
      this.$message.success('删除成功')
    },
    async setRole(userInfo) {
      this.userInfo = userInfo
      //展示对话框之前获取所有角色的列表
      let { data: res } = await this.$http.get('/roles')
      if (res.meta.status !== 200) return this.$message.error('获取角色列表失败')
      this.rolesList = res.data
      this.setRoledialogVisible = true
    },
    async saveRoleInfo() {
      if (!this.selectedRoleId) return this.$message.error('请选择要分配的角色')
      let { data: res } =
        await this.$http.put(`/users/${this.userInfo.id}/role`,
          { rid: this.selectedRoleId })
      if (res.meta.status !== 200) {
        return this.$message.error('更新角色列表失败')
      }
      this.$message.success('更新角色列表成功')
      this.getUserList()
      this.setRoledialogVisible = false
    },
    //监听分配角色对话框的关闭事件
    setRoleDialogClosed() {
      this.selectedRoleId = ''
      this.userInfo = {}
    }
  }
}
</script>

<style scoped>

</style>